Super Bikkuriman vs Humanity Has Declined

After of the big war between angels and demons, the Earth is almost destroyed and his cities devastated. Wanted to restore the peace and the harmony, four young child decides to fight against the army of evil that rules the world for to eradicate to the Earth and give them back to hell. (Source: IMdB)

Because of the constantly declining birth rates over many decades, human civilization is all but extinct. With only a few humans remaining, they survive in this post-apocalyptic world with what was left behind by the previous generations. Earth is now dominated by fairies, tiny creatures with extremely advanced technology, an obsession with candy, and a complete disregard for human safety. A you...